Road-leveler



J. NORTHON.

ROAD LEVELER.

APPLICATION FILED SEPT. 26. 1919.

1,329,543 Patented Feb. 3, 1920.

3 SHEETS-SHEET I.

J. NORTHON.

ROAD L EVELE R. APPLICATION FILED SEPT, 2s. 1919,

Patented Feb. 3,1920.

3 SHEETS-SHEET 2.

WWW

N a Q J NORTHON.

ROAD LEVELER.

AEPLIQATIQN FILED SEPT. 26, 1919. 1,329,543 Patented Feb. 3,1920.

3 5HEET$SHEET 3- I L 7 151g. 59 5 UNITED STATES PATENT onnion.

JOHN non'rnoiv, on CLARE, MICHIGAN.

noAn-LEvELEn.

Specification of Letters Patent.

Patented Feb. 3,1920.

Application filed September 26, 1919. SerialNo. 326,428. b

. To all whom it may concern:

light draft roadlevelers, my object being the provision'of a comparatively inexpensive arrangement for this purpose, 2'. 6., by means of which roads may be leveled, which will avoid many of the disadvantages of the present constructions for this purpose andwill admit of ready adjustment in several respects.

In carrying out my i-nvention,'I; propose a machine whose function is to cut down the high spots and fill in the low spots-in a dirt or gravel roadway surface, and todo this without constantly combating the disadvantages of side draft, particularly as where, in the presentcase, it is intended that the surplusmaterial shall be left along the center or crest of the roadway.

My invention further aims to provide a lasting durable construction, in which such parts as are subject to the greatest wear in use, may be readily replaced from time to time and in which the several adjustments may be easily and conveniently effected.

In the accompanying drawings, illustrating my present invention Figure 1 is'a top plan view ofthe complete machine,

Fig. 2 is a vertical SQCUOHHIYIGW taken substantially on line 22.of Fig. 1,

Fig. 3 is a vertical section taken substantially on line 3-3 of Fig. 2,

Fig. 4 is a vertical cross section taken substantially on line H of Fig. 1,

Fig. 5 is a side elevation of a portion of the frame illustrating one of the supporting skids, and

Fig. 6 is a vertical sectional view taken substantially on line 66 of Fig.5.

Fig. 7 is a plan view illustrating one of the supporting skids.

Referring now to these figures, my 1nvention proposes a float or roadway leveler which includes a central longitudinal beam 25 and side beams 26 and 27, the side beams 26 and 27 being of substantially the same l ngth, nd th cent a beam 25 be n of ncreased length with respect thereto, so as to project rearwardly beyond the ends of the side beams.

Each of these .several beams is made up of a pair of angle bars 28and 29, disposed with their horizontal'fianges in the .same plane and with their vertical flanges in spaced apart parallel relation and connected rigidly to one another by rivets 30 passing through spacing thimbles 31, as seen in Figs. 2 and 1 in particular.

.Each of the several beams 25, 26 and 27 has therefore a central lengthwise slot which is interrupted at spaced points only by the connecting rivets 30 and 31, so as to. receive the bolts through the slot for. securing the several connecting parts, which are thus freely adjustable lengthwise of the beams.

The frame of the machine consists of the central and side beams disposed in spaced parallel relation and connected by. cross beams 32 and 33, each of the latter of which is in the form of an angle bar securely fas tened at its center by a bolt34 to the. central beam 25 and each cross beam has adjacent to its outer ends lengthwise slots 35 through which bolts 36 project from the. side beams,

so that the two side beams 25 and 27 be adjusted toward and away from the central beam within the limits of slots 35 and in this way vary the width of the. entire frame as it becomes necessary to do so.

By reference to Fig. 4, it will be noted that the cross beams 32 and 33 extend above the longitudinal beams 25, 26 and 27 and by reference to Figs. 2 and 3 in particular, it Will be noted that the several inclined cutter bars 37 extend below the several longitudinal frame beams, each of these cutter bars being in the form of an angle bar of a length somewhat greater than half of the width of the main frame. I

As will be noted from Fig. 1, the several cutter bars 37' extend-from the two side beams 26 and 27 to the central beam 25' in staggered relation rearwardly throughout purpose.

roadway surface over which the machine travels so as to effectively fill these hollow spaces with the material cut from the high spots and the surplus material will be finally shifted to the center of the roadway in order to conserve so far as possible the surface gravel or chips. Y

Each of the several cutter bars 37 and 38 is in the'form of an angle bar whose upper horizontal flange is apertured for the recep-- tion of bolts 39 connecting the same to the side and central beams of the frame the depending vertical flange being provided with apertures for the reception of bolts 40 by means of which a double edge knife blade 41 of the form seen in Fig. 3, is securely fastened in reversible relation along the lower edge of the cutter bar.

Of the shorter cutter bars 37, the inner bolts 39 are attached to the central beam 25, theouter bolts attaching to the'side beams, the same as the outer bolt of the rear elongated cutter bar 38, the latter of which has a bolt 42 intermediate its end, attaching the same to the rearwardly projecting portion of the central beam 25 and these several bolts project through the slots of the central and side beams as well as through the slotted openings of the cutter bars so that theinclination of the several cutter bars may be readily adjusted for a purpose which will be presently described.

Certain of the outer bolts of the forward cutter bars 37 may be utilized to support clevises 43, or special bolts may be passed through the side beams 26 and 27 for this These clevises receive the inner ends of chains 44 and the like to which the draft attachments generally indicated at 45 in Fig. 1 may be connectec The frame of the machine as a whole is preferably supported upon skids 46of which there are preferably two, at least. to each of the side beams 26 and 27. One of these skids is shown in Figs. 5 and 6, and by reference to these latter figures, it will be noted that each skid consists of a flat bar curved'upwardly at one end and into U-form to constitute a shank 47, the upper end of which extends vertically through the slot of the respective side beam and 'is held by a transverse pin 48 andcotter pin 49, the opposite free end of the skid having an upwardly projecting eye 59, connected at the lower end of a COll spring 51 depending from the I respectiveside beam. Intermediate its ends,

each skid bar 46 is engaged by the lower enlarged and detachable head 52 of an adjusting screw 53 threaded for the major portion of its length as shown in Fig. 6 and working through a threaded bearing block 54 secured by bolts 55 and the like in the slot of the respective side beam, each vertical adjusting screw having a hand wheel 56 pinned to its upper end above the levelof the frame, so

that the frame may be readily adjusted. In this way, it is easy to regulate the depth of the cut of the several blades carried by the cutter bars.

It is obvious from the foregoing that in addition to the shifting of the draft attachments to one or the other of the sides of the frame, which requires constant change and careful attention, if side draft of the leveler is to be overcome in operation, I may with my improved construction avoid this disadvantage by simply varying the inclination of the cutter bars at one side, and accomplish the same result, particularly incertam instances of use, where it is awkward and in fact difficult to vary the connection draft attachments.

It is obvious, therefore, that the construction proposed by my invention is well calculated to carry out the objects first above stated, and will admit of ready adjustment for the above purposes, as well asfor the purpose of regulatingthe depth of the cut, and it is to be observed, that for the latter purpose, I may utilize wheels instead of the skids as shown and before described.

Claims r 1 a 1. A road leveler comprising central and side beams, each consisting of angle bars rigidly connected in spaced relation to form slots, cross braces adjustably connecting the said beams, cutter bars extending in staggered relation from the side beams to the central beam, bolts working in said beam slots and adjustably connecting said cross braces and said cutter bars,a'nd roadway engaging supports'carried by the side beams,

and adjustable with respect thereto, whereby to vary the depth of out, as described.

2. A roadway leveler comprising central and side beams. each formed of angle bars rigidlyconnected in spaced apart relation so as to provide a lengthwise slot. bolts extending through and adjustable in the said slots. cross braces through which certain of said bolts are extended. and a series of cutter bars extending from the side beams to the central beam in staggered relation, said cutter bars having lengthwisejslots receiving certain of the bolts of the beams whereby their inclination may be varied with respect to the main frame.

3. A road leveler comprising central and side beams, cross beams connecting said beams, a plurality of cutter bars extending in staggered relation from the said beams to the central beam and each in the form of an angle bar having a depending flange, and a double edged cutter blade secured in reversible relation to the depending flange of each of the cutter bars as described. 7

4. A road leveler including a frame comprisin longitudinal beams, cross braces adjustabl bars secured to the beams, skids pivotally attached at one end to the beams to engage a roadway surface and having yielding connections at their opposite ends with the beams, and vertically adjustable members having threaded bearing on the said beams and having their lower ends engaging the skids to adjust the latter vertically with respect to the beams.

5. A road leveler including slotted frame beams, cross braces connecting the beams, cutter bars adjustably fastened to the beams, threaded bearings secured in the slots of the frame beams at spaced points, vertical adjusting screws mounted through said bearings and having hand wheels at their uppei ends, and skids movably attached at one end to the beams and depending there below,

ture.

. Jo -ni NORTHON. 

